"My great-grandmother could be quite wrathful.On several occasions, she set her will against the great terton---- she was stubborn enough to start a squabble.
He didn´t appreciate her drinking from a garuda claw that he had discover when reveling a terma.--"I didn´t go to the trouble of recovering this rare garuda craw for you to use as shot glass!"--- she: "it holds a drink really well! And thats i´m going to use it for!"
And she imediately poured herself a drink... (p.39)
the memoirs of Tulku Urgyen Rinpoche